Day: February 6, 2023

Effective and reusable 3D Cu_xS nanocluster structured magnetic adsorbent for mercury extraction from wastewater was written by Li, Peng;Huang, Jiu;Gao, Chen;Xu, Guiyin;Wang, Guanghui;Zhang, Bo;Duan, Chenglong. And the article was included in Chemosphere in 2022.Recommanded Product: 20427-59-2 This article mentions the following:

The elimination of mercury from polluted water using an effective, cost-economic, and sustainable method was investigated in this work. A modulated multilayer magnetic Hg²⁺ extractor was prepared with a self-assembly engineering that permitting robust anchoring and uniform distribution of the neg. charged 3D Cu_xS nanocluster onto a polydopamine (PDA) covered pos. strengthened Fe₃O₄ surface. The developed PAD@Fe₃O₄ supported copper sulfide composite (Cu_xS/PAD@Fe₃O₄) presented an unparalleled Hg²⁺ uptake performance with adsorption capacity of 1394.61 mg/g (without saturation), and extraordinary selectivity with distribution coefficient value K_d of 17419.2 mL/g. A complexation reaction during Hg²⁺ affinity was taken place on Cu_xS/PAD@Fe₃O₄ surface, and almost no components losses occurring during the adsorption. Furthermore, the as-prepared Cu_xS/PAD@Fe₃O₄ micron-adsorbent can be easily magnetic recovery and recycled with hydrochloric acid elution. The purification of 50 L Hg²⁺ containing wastewater, initial concentration of 20μg/L can be achieved with CuxS/PAD@Fe₃O₄ dosage of 0.1 g and treatment cost of 0.077 US $. The outlet Hg²⁺ concentration met drinking water standard of the United States Environmental Protection Agency. The CuxS/PAD@Fe₃O₄ magnetic adsorbent can be fabricated cheaply and holds promise for scale-up applications. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Recommanded Product: 20427-59-2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross-coupling reaction in organic synthesis. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. Recommanded Product: 20427-59-2

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Cu₃P@Ni core-shell heterostructure with modulated electronic structure for highly efficient hydrogen evolution was written by Chen, Jiayi;Li, Xu;Ma, Bo;Zhao, Xudong;Chen, Yantao. And the article was included in Nano Research in 2022.Quality Control of Cuprichydroxide This article mentions the following:

The sluggish charge transfer and poor intrinsic activity are the bottlenecks that hamper the further development of electrocatalysts for hydrogen evolution. A novel core-shell heterostructure of Cu₃P@Ni is fabricated, which is composed of Cu₃P nanorods covered by metallic Ni. The as-prepared Cu₃P@Ni exhibits a durable and superior activity toward hydrogen evolution, with an overpotential of 42 mV to deliver 10 mA·cm^-2 and a Tafel slope of 41 mV·dec^-1. Charge redistribution is observed after successfully constructing the core-shell heterostructure, leading to the altered electronic structure. The theor. calculations have manifested that Cu₃P@Ni exhibits a zero bandgap and optimized adsorption strength of intermediates, which could give rise to the accelerated charge transfer as well as increased intrinsic activity. This work could shed light on the development of novel electrocatalysts with modulated electronic structure for highly efficient hydrogen evolution. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Quality Control of Cuprichydroxide).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. The transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents has turned up as an exceedingly robust synthetic tool. Copper nanoparticles can also catalyze the coupling reaction of phenols, thiols, xanthogenates, nitrogen-containing nucleophiles, selenium ruthenium nucleophiles and the like.Quality Control of Cuprichydroxide

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Electronic and Structural Modification of Mn₃O₄ Nanosheets for Selective and Sustained Seawater Oxidation was written by ul Haq, Tanveer;Mansour, Said;Haik, Yousef. And the article was included in ACS Applied Materials & Interfaces in 2022.Product Details of 20427-59-2 This article mentions the following:

The accomplishment of seawater electrolysis to produce green hydrogen energy needs an efficient and durable electrocatalyst with high selectivity and corrosion resistance. Here we report a free-standing amorphous nanostructured oxygen evolution reaction (OER) electrocatalyst with microvoids developed by embedding Gd-doped Mn₃O₄ nanosheets in a CuO-Cu(OH)₂ nanostructure array (Gd-Mn₃O₄@ CuO-Cu(OH)₂. The surface oxygen vacancies modulated the electronic structure of the catalyst and offered active sites with optimal chemisorption energy to OER intermediates. The hierarchical surface structure provides a large sp. surface area, high elec. conductivity, ionic mobility, intrinsic activity for each active site, and efficient charge transfer, leading to an outstanding catalytic performance. The enhanced structural, chem., and corrosion resistance ensures effectiveness as an anode in direct seawater electrolysis. Specifically, it needs an input voltage of 1.63 V to deliver a c.d. of 500 mA cm^-2 in alk. seawater, with the stability of more than 75 h of continuous electrolysis without hypochlorite formation. The high Faradaic efficiency demonstrates its potential for hydrogen fuel production from seawater. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Product Details of 20427-59-2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. The evolution of transition metal catalysts has attained a stage of civilization that authorizes for an extensive scope of chemical bonds formation partners to be combined efficiently. The copper-mediated C-C, C-O, C-N, and C-S bond formation is a part of one oldest reaction, emphasizing the Ullmann cross-coupling reaction.Product Details of 20427-59-2

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

A core-shell NiCu@NiCuOOH 3D electrode induced by surface electrochemical reconstruction for the ammonia oxidation reaction was written by Zhang, Huimin;Chen, Wenyi;Wang, Hailong;Tong, Xing;Wang, Yifei;Yang, Xu;Wu, Zucheng;Liu, Zhanmeng. And the article was included in International Journal of Hydrogen Energy in 2022.Application In Synthesis of Cuprichydroxide This article mentions the following:

A direct ammonia microfluidic fuel cell is a potential portable carbon-free clean energy device. In this work, a NiCu-based core-shell 3D electrode is obtained by electrodeposition and surface electrochem. reconstruction on the nickel foam substrate. The phys. characterization results confirm the core-shell structure with NiCu as the core and Cu(OH)₂ and NiOOH as the shell. In the 3D electrode, the metal core continuously transfers charge to the surface to transform into active species (NiCu hydroxides), thus accelerating the slow ammonia oxidation reaction kinetics. Furthermore, the 3D porous structure is conducive to the rapid diffusion and transport of ions, which effectively improves the fuel depletion boundary layer problem. Consequently, electrochem. tests indicate that the NiCu@NiCuOOH-NF electrode show excellent ammonia oxidation reaction activity and good stability, reaching a maximum c.d. of 90 mA cm^-2 at the potential of 0.7 V vs. SCE (SCE). When 2 M NaOH + 3 M NH₄Cl is adopted as fuel for the DAMFC, an open circuit voltage of 0.72 V and a peak power d. of 17.1 mW cm^-2 can be obtained, while the limiting c.d. is as high as 102 mA cm^-2. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Application In Synthesis of Cuprichydroxide).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Copper catalyst has received great attention owing to the low toxicity and low cost. Copper nanoparticles can also catalyze the coupling reaction of phenols, thiols, xanthogenates, nitrogen-containing nucleophiles, selenium ruthenium nucleophiles and the like.Application In Synthesis of Cuprichydroxide

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Novel layered triple hydroxide sphere CO₂ adsorbent supported copper nanocluster catalyst for efficient methanol synthesis via CO₂ hydrogenation was written by Li, Jian;Du, Tao;Li, Yingnan;Jia, He;Wang, Yisong;Song, Yanli;Fang, Xin. And the article was included in Journal of Catalysis in 2022.Synthetic Route of CuH2O2 This article mentions the following:

Copper-based catalysts are playing important roles in CO₂ hydrogenation to methanol. Active copper provides sites for H₂ dissociation, whereas CO₂ adsorption and activation cannot be ignored either. Accordingly, novel Cu/LTH catalysts with copper nanoclusters supported on layered triple hydroxide (LTH) sphere CO₂ adsorbent were developed to improve microstructures and CO₂ adsorption capabilities simultaneously. The results show increasements in copper content enlarge crystallite sizes yet reduce surface areas and pore volumes All Cu/LTH catalysts consist of uniformly dispersed copper nanoclusters on external surfaces of LTH. Catalytic tests reveal remarkable properties of Cu/LTH catalysts compared with conventional catalysts. Further mechanism analyses demonstrate LTH can boost CO₂ adsorption capability at reaction conditions. Due to metal-support interactions, copper species in Cu₃/LTH are more easily reduced mainly in the form of Cu⁺, benefiting directional CO₂ conversion to methanol. Thus, it is feasible and efficient to ameliorate catalyst by incorporating adsorbent for enhanced CO₂ adsorption process. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Synthetic Route of CuH2O2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. The applications of Copper-based nanoparticles have received great attention due to the earth-abundant, inexpensive and low toxicity. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. Synthetic Route of CuH2O2

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Selective recovery of nickel from obsolete mobile phone PCBs was written by Rao, Mudila Dhanunjaya;Singh, Kamalesh K.;Morrison, Carole A.;Love, Jason B.. And the article was included in Hydrometallurgy in 2022.Application of 20427-59-2 This article mentions the following:

In the present investigation, the selective recovery of nickel from a leach solution of delaminated metal clads from obsolete mobile phone PCBs using the industrial reagent ACORGA M5640 has been studied. As a first step, copper is selectively separated from the mixed metal leach liquor by solvent extraction at pH 2, to leave a nickel-rich raffinate solution A second stage solvent extraction process conducted at pH 8 then permits recovery of the nickel. Small quantities of zinc and cadmium are also co-extracted In this study, the conditions for most suitable nickel extraction and stripping have been explored. Results indicate that quant. extraction of nickel (99.7%) can be achieved using a 1:5 organic (10 vol% extractant in kerosene) to aqueous (pH 8) phase ratio in 60 min. The nickel in the organic phase is readily stripped from the extractant, with more than 95% recovered, along with low levels of zinc (1.7 mg/L) and cadmium (0.6 mg/L), following a 0.5 M hydrochloric acid or 1 M nitric acid strip step. Cyclic usage of the extractant organic layer revealed that its effectiveness to extraction has remained equivalent to the first cycle. Finally, the separation of trace elements such as lead, tin and cadmium from the raffinate of stage 2 solvent extraction is also studied by cementation with zinc powder. The study reveals that the removal of these elements and the generation of pure zinc solution can be obtained by adding 300% excess zinc powder (74 μm) at 50 °C with 500 rpm stirring speed in 60 min. The separation of copper in stage 1, nickel from copper-free aqueous solution in stage 2 and other minor elements from the raffinate of stage 2 solvent extraction ensures the proposed process is sustainable and avoids complexity in the sequential metal recovery processes. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Application of 20427-59-2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. The transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents has turned up as an exceedingly robust synthetic tool. Copper nanoparticles can also catalyze the coupling reaction of phenols, thiols, xanthogenates, nitrogen-containing nucleophiles, selenium ruthenium nucleophiles and the like.Application of 20427-59-2

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Toward High-Performance CO₂-to-C₂ Electroreduction via Linker Tuning on MOF-Derived Catalysts was written by Chen, Rongzhen;Cheng, Ling;Liu, Jinze;Wang, Yating;Ge, Wangxin;Xiao, Chuqian;Jiang, Hao;Li, Yuhang;Li, Chunzhong. And the article was included in Small in 2022.Electric Literature of CuH2O2 This article mentions the following:

Copper (Cu)-based metal-organic frameworks (MOFs) and MOF-derived catalysts are well studied for electroreduction of carbon dioxide (CO₂); however, the effects of organic linkers for the selectivity of CO₂ reduction are still unrevealed. Here, a series of Cu-based MOF-derived catalysts is investigated with different organic linkers appended, named X-Cu-BDC (BDC = 1,4-benzenedicarboxylic acid, X = NH2, OH, H, F, and 2F). It is found that the linkers affect the faradaic efficiency (FE) for C₂ products with an order of NH₂ < OH < bare Cu-BDC < F < 2F, thus tuning the FEC2:FEC1 ratios from 0.6 to 3.8. As a result, the highest C₂ FE of ≈63% at a c.d. of 150 mA cm^-2 on 2F-Cu-BDC derived catalyst is achieved. Using operando Raman measurements, it is revealed that the MOF derives to Cu₂O during eCO₂RR but organic linkers are stable. The fluorine group in organic linker can promote the H₂O dissociation to *H species, further facilitating the hydrogenation of *CO to *CHO that helps CC coupling. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Electric Literature of CuH2O2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. The evolution of transition metal catalysts has attained a stage of civilization that authorizes for an extensive scope of chemical bonds formation partners to be combined efficiently. Due to these characteristics, copper nanoparticles have generated a great deal of interest especially in the field of catalysis. Electric Literature of CuH2O2

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

The selective depression effect of dextrin on pyrite during the Zn-Fe sulfides flotation under low alkaline conditions was written by Sun, Xin;Huang, Lingyun;Wu, Dandan;Tong, Xiong;Yang, Siyuan;Hu, Bo. And the article was included in Colloids and Surfaces, A: Physicochemical and Engineering Aspects in 2022.Reference of 20427-59-2 This article mentions the following:

As an environmentally friendly scale inhibitor, characterized by low cost, high efficiency and no secondary pollution, dextrin was utilized as a depressant in the flotation separation of mixed Zn-S concentrate The microflotation results clearly demonstrate that dextrin exerted a good inhibitory effect on pyrite and sphalerite could be separated successfully from pyrite in low alk. environment. The mixed mineral flotation results further indicate that sphalerite could be efficiently separated from its synthetic mixture with pyrite via the use of dextrin as the depressant in the pH range of 7-9. The contact Angle test shows that dextrin can be adsorbed on the surface of Cu-activated pyrite to enhance hydrophobicity, but not on the surface of Cu-activated sphalerite. The results of IR spectroscopy investigations and XPS analyses indicate that under low alkali conditions, copper ions activate sphalerite, and copper sulfide polysulfide forms on sphalerite surface without Cu(OH)₂ formation. Cu(OH)₂, Fe(OH)₂ and CuS were generated on pyrite surface due to the activation of copper ions. The adsorption between dextrin and metal hydroxyl compounds was the main cause of pyrite inhibition, which is attributed to the hydrophilic hydroxyl group in the dextrin mol. According to these results, dextrin can be used as a selective depressant for pyrite during sphalerite flotation in low alk. environment. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Reference of 20427-59-2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Transition metal-catalyzed chemical transformation of organic electrophiles and organometallic reagents belong to the most important cross-coupling reaction in organic synthesis. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.Reference of 20427-59-2

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Mushroom-like graphene nanosheets/copper sulfide nanowires foam with janus-type wettability for solar steam generation was written by Zhang, Ziyan;Liu, Hongying;Kong, Zhuang;Fang, Mingwei;Wang, Meiling;Zhu, Ying. And the article was included in ACS Applied Nano Materials in 2022.Electric Literature of CuH2O2 This article mentions the following:

Solar steam generation provides an efficient, sustainable, and affordable strategy for freshwater extraction from seawater and wastewater to effectively deal with the water shortage crisis. However, it still faces poor durability because the salting-out effect always leads to a decrease in the evaporation rate at high salt concentrations To address this issue, we designed mushroom-like micro/nanostructured graphene nanosheets/copper sulfide nanowires (graphene/Cu₇S₄) on Cu foam with Janus-type wettability by in situ oxidation of Cu foam and precipitation conversion, followed by the dip-coating method. The superhydrophilic Cu₇S₄ nanowires are endowed with the function of water supply and thermal insulation, and the hydrophobic graphene nanosheets are granted with the function of light absorption and water evaporation Under one sun illumination, the graphene/Cu₇S₄ foam with Janus-type wettability exhibits a high water evaporation rate of up to 2.78 kg m^-2 h^-1 and long-term stability for brine evaporation The excellent performances are ascribed to a fast water supply and a salt-rejecting effect due to the capillarity forces and high porosity. This solar steam generation with the Janus-type wettability has broadened the potential applications of seawater desalination, wastewater purification, and sterilization. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Electric Literature of CuH2O2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Copper catalyst has received great attention owing to the low toxicity and low cost. Copper nanoparticles can also catalyze the coupling reaction of nitrogen-containing nucleophiles, phenols, thiols, xanthogenates, selenium ruthenium nucleophiles and the like.Electric Literature of CuH2O2

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”

Antibacterial polyvinyl alcohol nanofiltration membrane incorporated with Cu(OH)₂ nanowires for dye/salt wastewater treatment was written by Chen, Yingdong;Sun, Rongze;Yan, Wentao;Wu, Mengyao;Zhou, Yong;Gao, CongJie. And the article was included in Science of the Total Environment in 2022.Synthetic Route of CuH2O2 This article mentions the following:

In many important industries, such as the textile printing industry, a large amount of dye/salt wastewater is often discharged, which can destroy the ecol. environment of the water body. Membrane technol. has a great potential in the treatment of environmental problems caused by dye/salt wastewater. Polyvinyl alc. (PVA) nanofiltration (NF) membrane has a bright future in dye/salt wastewater treatment, however, works on this are rare. Herein, antibacterial PVA NF membrane incorporated with Cu(OH)₂ nanowires for the dye/salt wastewater treatment is reported. The membrane was prepared via coating the solutions containing PVA, glutaraldehyde and Cu(OH)₂ nanowires on the polyethersulfone ultrafiltration membrane. Cu(OH)₂ nanowires has a diameter of 60 nm and was successfully introduced into the membrane. The introduction of nanowires improved the membrane hydrophilicity and roughness, which is conducive to the improvement of membrane flux. Membrane separation performance for one component solution and dye/salt solution were investigated. The introduction of Cu(OH)₂ increases the flux of the membrane obviously (the highest increase is 178.78% from 21.49 to 38.42 L·m^-2·h^-1·bar^-1, for NaCl solution as the feed). Besides, the membrane doped with nanowires also possessed a high dye/salt selectivity. For one component solution, the dye removal rate was over 97.00% while the salt rejection was low (the lowest was 13.18% (NaCl)). For the dye/salt solution, the dye (Congo Red) rejection kept at a high level (98.91%) and the salt (NaCl) rejection was still low (13.71%), while the flux was also high (37.56 L·m^-2·h^-1·bar^-1). The performance is superior to that of many membranes reported in previous works. Moreover, the Cu(OH)₂ nanowires endowed the membrane with an improved and high antibacterial property. The sterilization rate of Escherichia coli and Staphylococcus aureus reached more than 99.99%. In the experiment, the researchers used many compounds, for example, Cuprichydroxide (cas: 20427-59-2Synthetic Route of CuH2O2).

Cuprichydroxide (cas: 20427-59-2) belongs to copper catalysts. Copper has continued to be one of the most utilized and important transition metal catalysts in synthetic organic chemistry. Copper nanoparticles can catalyze the Ullmann coupling reaction in a wide range of applications.Synthetic Route of CuH2O2

Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”