Visible-light-driven Ag/AgCl@In2O3: a ternary photocatalyst for the degradation of tetracycline antibiotics

Lv, Haiqin1,2; Duan, Yanyan1,3; Zhou, Xin1,2; Liu, Guimei1,2; Wang, Xin4,5; Wang, Yuanhao6; Yuan, Mingzhe1,2; Meng, Qingguo1,2; Wang, Chuanyi1,3

2020-12-21

10.1039/d0cy01293a

Catalysis Science & Technology   影响因子和分区

2044-4753

2044-4761

The abuse of tetracycline antibiotics (TCs) has created great threats to both human health and the ecosystem. Therefore, developing efficient technologies to remediate these contaminants is of significant and practical interest. In this work, a ternary plasmonic Ag/AgCl@In2O3 nanocomposite was synthesized by growing AgCl on the surface of one-dimensional In2O3 nanorods, followed by the in situ photoreduction of Ag from AgCl on AgCl@In2O3. The as-synthesized Ag/AgCl@In2O3 nanocomposite exhibits excellent performance for the photocatalytic degradation of tetracycline (TTC) with a degradation rate constant of 0.166 min(-1), which is much better than that of pristine In2O3, Ag@In2O3, AgCl@In2O3, Ag/AgCl, and In2O3 + Ag/AgCl (the mechanical mixture of In2O3 and Ag/AgCl) samples. Five photocatalytic cycling tests demonstrate that Ag/AgCl@In2O3 possesses outstanding stability. In addition, Ag/AgCl@In2O3 also exhibits excellent photo-activity for the degradation of other types of tetracycline antibiotics, e.g. chlortetracycline (CTC) and oxytetracycline (OTC). Further trapping experiments prove that h(+) and O-2(-) are responsible for the photocatalytic reactions. The enhancement in the photoactivity of the Ag/AgCl@In2O3 system is largely due to the surface plasmon resonance effect (SPR) provided by the Ag nanoparticles, which inject electrons into AgCl and/or In2O3, and the efficient separation of photoinduced carriers is possible by transferring electrons to the conduction band of In2O3. This work provides a new type of photocatalyst towards the effective treatment of tetracycline antibiotics in aqueous systems.

SCI ; EI

英语

其他

National Nature Science Foundation of China[21473248] ; Guangdong Provincial Science and Technology Project[2018A050506025] ; High Level Talents Introduction Project of "Pearl River Talent Plan" in Guangdong Province[2019CX01L308] ; Guangzhou Science and Technology Project[202002030406][201804010181] ; Support Scheme of Guangzhou for Leading Talents in Innovation and Entrepreneurship Funding[2016015] ; key deployment projects of Chinese Academy of Sciences[ZDRW_CN_2020_1]

Chemistry

Chemistry, Physical

WOS:000598674500008

ROYAL SOC CHEMISTRY

20205209690664

Antibiotics ; Degradation ; Silver halides ; Indium compounds ; Rate constants ; Silver nanoparticles ; Surface plasmon resonance ; Nanocomposites ; Health risks ; Nanorods ; Plasmonics

Medicine and Pharmacology:461.6 ; Health Care:461.7 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Plasma Physics:932.3 ; Solid State Physics:933

Web of Science

1.Chinese Acad Sci, Shenyang Inst Automat, Guangzhou 511400, Peoples R China
2.Guangdong Engn & Technol Res Ctr Environm Purific, Guangzhou 511400, Peoples R China
3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Lab Environm Sci & Technol, Urumqi 830011, Peoples R China
4.South China Normal Univ, Int Acad Optoelect Zhaoqing, Zhaoqing 526000, Peoples R China
5.South China Normal Univ, South China Acad Adv Optoelect, Inst Elect Paper Displays, Guangzhou 511458, Peoples R China
6.Southern Univ Sci & Technol, Sch Environm Sci & Engn, SUSTech Engn Innovat Ctr, Shenzhen 518055, Peoples R China

Lv, Haiqin,Duan, Yanyan,Zhou, Xin,et al. Visible-light-driven Ag/AgCl@In2O3: a ternary photocatalyst for the degradation of tetracycline antibiotics[J]. Catalysis Science & Technology,2020,10(24):8230-8239.

Lv, Haiqin.,Duan, Yanyan.,Zhou, Xin.,Liu, Guimei.,Wang, Xin.,...&Wang, Chuanyi.(2020).Visible-light-driven Ag/AgCl@In2O3: a ternary photocatalyst for the degradation of tetracycline antibiotics.Catalysis Science & Technology,10(24),8230-8239.

Lv, Haiqin,et al."Visible-light-driven Ag/AgCl@In2O3: a ternary photocatalyst for the degradation of tetracycline antibiotics".Catalysis Science & Technology 10.24(2020):8230-8239.