Zhang, Peiqing1; Wang, Fushuai1; Wang, Fushuai2,3; Wang, Ning2,3; Qin, Yawei4; Wang, Ning5
发表期刊ACS APPLIED NANO MATERIALS
ISSN2574-0970
2020-08-28
卷号3期号:8页码:7847-7857
关键词exfoliated g-C3N4gold nanoparticlesporous heterostructurescatalystorganic dyes
DOI10.1021/acsanm.0c01355
英文摘要Water-soluble organic carcinogenic pollutants have become a serious threat to both health and environment. Here, porous ternary spherical montmorillonite/exfoliated graphitic carbon nitride nanosheets/gold nanoparticles (SMt/g-C3N4/Au NPs) heterostructures were facile and green synthesized through a polydopamine chemistry method. These involved the coating of porous SMt with exfoliated g-C3N4 nanosheets and in situ growth of Au NPs. The prepared heterostructures exhibited a universal catalytic ability toward organic dyes, such as methylene blue (MB), rhodamine 6G, and Congo red, in the presence of sodium borohydride (NaBH4). The catalytic activity would improve under high SMt/g-C3N4/Au NPs concentration, high temperature, and high pH values. For example, the apparent reduction rate constant (k(app)) and turnover frequency (TOF) toward MB can reach 5.91 min(-1) and 302 h(-1), respectively, at 35 degrees C and pH values of 11. Furthermore, the influences of the pH values on the catalytic performance were investigated, and the reason can be attributed to the strong enhanced adsorption capacity of SMt/g-C3N4/Au NPs heterostructures toward organic dyes under the high pH values for facilitating electron transfer from NaBH4 to organic dyes. Moreover, the SMt/g-C3N4/Au NPs heterostructures were quite stable, being recycled at least 10 times with almost unchanged k(app). The excellent catalytic performance and recyclability recommend our synthesized SMt/g-C3N4/Au NPs heterostructures for a wide range of applications in environment and wastewater treatment.
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51903247]; Key Science and Technology Program of Yantai City [2018ZHGY075]; Shandong Key Laboratory of Coastal Environmental Processes, YICCAS [2019SDHADKFJJ15]
收录类别SCI
语种英语
关键词[WOS]IN-SITU PREPARATION; SILVER NANOPARTICLES; COMPOSITE MICROSPHERES; CATALYTIC-REDUCTION; GOLD NANOPARTICLES; SINGLE; NANOCOMPOSITES; REMOVAL
研究领域[WOS]Science & Technology - Other Topics; Materials Science
WOS记录号WOS:000566778600059
引用统计被引频次：7[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/30486
专题中国科学院烟台海岸带研究所
作者单位1.Yantai Univ, Yantai 264005, Shandong, Peoples R China;
2.Chinese Acad Sci, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Res Ctr Coastal Environm Engn & Technol Shandong, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China;
3.Chinese Acad Sci, Yantai Inst Coastal Zone Res YICCAS, Yantai 264003, Shandong, Peoples R China;
4.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China;
5.Chinese Acad Sci, Ctr Ocean Megasci, Yantai, Shandong, Peoples R China
推荐引用方式
GB/T 7714Zhang, Peiqing,Wang, Fushuai,Wang, Fushuai,et al. Exfoliated Graphitic Carbon Nitride Nanosheets/Gold Nanoparticles/Spherical Montmorillonite Ternary Porous Heterostructures for the Degradation of Organic Dyes[J]. ACS APPLIED NANO MATERIALS,2020,3(8):7847-7857.
APAZhang, Peiqing,Wang, Fushuai,Wang, Fushuai,Wang, Ning,Qin, Yawei,&Wang, Ning.(2020).Exfoliated Graphitic Carbon Nitride Nanosheets/Gold Nanoparticles/Spherical Montmorillonite Ternary Porous Heterostructures for the Degradation of Organic Dyes.ACS APPLIED NANO MATERIALS,3(8),7847-7857.
MLAZhang, Peiqing,et al."Exfoliated Graphitic Carbon Nitride Nanosheets/Gold Nanoparticles/Spherical Montmorillonite Ternary Porous Heterostructures for the Degradation of Organic Dyes".ACS APPLIED NANO MATERIALS 3.8(2020):7847-7857.
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