Synthesis of Ni2P/CdS and Pt/TiO2 nanocomposite for photoreduction of CO2 into methanol

被引:33
作者
Nagababu, Penumaka [1 ,2 ]
Ahmed, Sehba Anjum Mumtaz [1 ,2 ]
Prabhu, Y. Taraka [2 ,4 ]
Kularkar, Ankush [1 ,2 ]
Bhowmick, Subhamoy [2 ,3 ]
Rayalu, Sadhana S. [1 ,2 ]
机构
[1] Natl Environm Engn Res Inst, Environm Mat Div, CSIR, Nagpur 440020, Maharashtra, India
[2] Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, Uttar Pradesh, India
[3] CSIR Natl Environm Engn Res Inst NEERI, Kolkata Zonal Ctr, Kolkata 700107, W Bengal, India
[4] Indian Inst Chem Technol, CSIR, Dept Analyt & Struct Chem, Hyderabad 500007, Andhra Pradesh, India
关键词
PHOTOCATALYTIC HYDROGEN EVOLUTION; CARBON-DIOXIDE; CONVERSION; REDUCTION; WATER; TIO2; 1,1-DIETHOXYETHANE; GENERATION; NANOSHEETS; NANOWIRES;
D O I
10.1038/s41598-021-87625-w
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
It is a great challenge to convert thermochemically stable CO2 into value-added products such as CH4, CH3OH, CO via utilizing solar energy. It is also a difficult task to develop an efficient catalyst for the reduction of CO2. We have designed and synthesized noble metal-free photocatalytic nanostructure Ni2P/CdS and Pt/TiO2 for conversion of CO2 to methanol in the presence of sacrificial donor triethylamine (TEA) and hydrogen peroxide. The synthesised catalysts physicochemical properties were studied by using several spectroscopic techniques like; XRD, UV-DRS, XPS, TEM, SEM and PL. Quantification of methanol by GC-MS showed encouraging results of 1424.8 and 2843 mu mol g(-1) of catalyst for Pt/TiO2 and 5 wt% Ni2P/CdS composites, respectively. Thus, Ni2P/CdS is a promising catalyst with higher productivity and significant selectivity than in-vogue catalysts.
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页数:11
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