Sonochemical synthesis of graphitic carbon nitride-manganese oxide interfaces for enhanced photocatalytic degradation of tetracycline hydrochloride

Yashas, Shivamurthy Ravindra1; Shivaraju, Harikaranahalli Puttaiah1,2; Pema, Gyaltsen1,2; Swamy, Ningappa Kumara3; Namratha, Keerthiraj4; Gurupadayya, Bannimath5; Madhusudan, Puttaswamy6

2020-09-19

10.1007/s11356-020-10813-0

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH   影响因子和分区

0944-1344

1614-7499

The present study focuses on the sonochemical synthesis of graphitic carbon nitride-manganese oxide (GCN/MnO2) nanocomposite for photocatalytic degradation of an environmentally hazardous pharmaceutical compound, tetracycline hydrochloride (TcH). The sonochemical synthesis aided in tailoring the morphology of GCN/MnO2. The characterization results of SEM/FESEM, XRD, FTIR, UV-Vis spectra, EIS, CV, etc., revealed on the morphology, composition, crystallinity, and other photo-electro-intrinsic properties of the materials. The synergy of GCN and MnO(2)results in rapid electron transfer, efficient visible-light absorption, and slower electron-hole pair recombination through its photo-responsive traits against TcH. It was noted that similar to 93% TcH (20 mg L-1) degradation was achieved for 30-mg catalyst dose under light-emitting diode (LED) irradiation (9 W, 220 V) in 135-min duration. The TcH mineralization results were well fit to pseudo-first-order kinetics with a rate constant of 0.02 min(-1)(R-2= 0.994). In addition, the composite possessed fair reusability for consequent cycles. Hence, the as-synthesized composite applied for photocatalysis and photoelectrocatalysis fosters a fit-for-purpose and reliable system in the decontamination of TcH in environmental samples.

Graphitic carbon nitride Manganese oxide Photocatalysis Tetracycline hydrochloride Sonochemical

SCI

英语

其他

Environmental Sciences & Ecology

Environmental Sciences

WOS:000571269500004

SPRINGER HEIDELBERG

ENVIRONMENT/ECOLOGY

Web of Science

1.JSS Acad Higher Educ & Res, Fac Nat Sci, Dept Environm Sci, Mysuru 570015, Karnataka, India
2.GREENS Trust, Ctr Water Food & Energy, Dombaranahalli Post, Turuvekere Taluka 572215, Karnataka, India
3.JSS Sci & Technol Univ, Sri Jayachamarajendra Coll Engn, Dept Chem, Mysuru 570006, Karnataka, India
4.Univ Mysore, Ctr Mat Sci & Technol & Earth Sci, Mysuru 570006, Karnataka, India
5.JSS Acad Higher Educ & Res, JSS Coll Pharm, Dept Pharmaceut Chem, Mysuru 570015, India
6.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China

Yashas, Shivamurthy Ravindra,Shivaraju, Harikaranahalli Puttaiah,Pema, Gyaltsen,et al. Sonochemical synthesis of graphitic carbon nitride-manganese oxide interfaces for enhanced photocatalytic degradation of tetracycline hydrochloride[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020,28(4).

Yashas, Shivamurthy Ravindra.,Shivaraju, Harikaranahalli Puttaiah.,Pema, Gyaltsen.,Swamy, Ningappa Kumara.,Namratha, Keerthiraj.,...&Madhusudan, Puttaswamy.(2020).Sonochemical synthesis of graphitic carbon nitride-manganese oxide interfaces for enhanced photocatalytic degradation of tetracycline hydrochloride.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,28(4).

Yashas, Shivamurthy Ravindra,et al."Sonochemical synthesis of graphitic carbon nitride-manganese oxide interfaces for enhanced photocatalytic degradation of tetracycline hydrochloride".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 28.4(2020).