Ultrasonic impregnation assisted in-situ photoreduction deposition synthesis of Ag/TiO2/rGO ternary composites with synergistic enhanced photocatalytic activity

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Ultrasonic impregnation assisted in-situ photoreduction deposition synthesis of Ag/TiO2/rGO ternary composites with synergistic enhanced photocatalytic activity. / Hou, Yaqi; Pu, Shengyan; Shi, Qingqing; Mandal, Sandip; Ma, Hui; Xue, Shengyang; Cai, Guojun; Bai, Yingchen.

In: Journal of the Taiwan Institute of Chemical Engineers, Vol. 104, 11.2019, p. 139-150.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Hou, Y, Pu, S, Shi, Q, Mandal, S, Ma, H, Xue, S, Cai, G & Bai, Y 2019, 'Ultrasonic impregnation assisted in-situ photoreduction deposition synthesis of Ag/TiO2/rGO ternary composites with synergistic enhanced photocatalytic activity', Journal of the Taiwan Institute of Chemical Engineers, vol. 104, pp. 139-150. https://doi.org/10.1016/j.jtice.2019.08.023

APA

Hou, Y., Pu, S., Shi, Q., Mandal, S., Ma, H., Xue, S., Cai, G., & Bai, Y. (2019). Ultrasonic impregnation assisted in-situ photoreduction deposition synthesis of Ag/TiO2/rGO ternary composites with synergistic enhanced photocatalytic activity. Journal of the Taiwan Institute of Chemical Engineers, 104, 139-150. https://doi.org/10.1016/j.jtice.2019.08.023

Vancouver

Hou Y, Pu S, Shi Q, Mandal S, Ma H, Xue S et al. Ultrasonic impregnation assisted in-situ photoreduction deposition synthesis of Ag/TiO2/rGO ternary composites with synergistic enhanced photocatalytic activity. Journal of the Taiwan Institute of Chemical Engineers. 2019 Nov;104:139-150. https://doi.org/10.1016/j.jtice.2019.08.023

Author

Hou, Yaqi ; Pu, Shengyan ; Shi, Qingqing ; Mandal, Sandip ; Ma, Hui ; Xue, Shengyang ; Cai, Guojun ; Bai, Yingchen. / Ultrasonic impregnation assisted in-situ photoreduction deposition synthesis of Ag/TiO2/rGO ternary composites with synergistic enhanced photocatalytic activity. In: Journal of the Taiwan Institute of Chemical Engineers. 2019 ; Vol. 104. pp. 139-150.

Bibtex

@article{5f47326c657642899c437635fea932b1,
title = "Ultrasonic impregnation assisted in-situ photoreduction deposition synthesis of Ag/TiO2/rGO ternary composites with synergistic enhanced photocatalytic activity",
abstract = "New approaches and practices to improve photocatalytic efficiency of materials for remediation of organic and inorganic pollutant has become a top priority. We have developed a graphene-oxide based ternary composite Ag/TiO2/rGO as a green catalyst, and the photocatalytic oxidation and reduction efficiency of the catalyst was thoroughly evaluated for Cr(VI) and tetracycline (TC) remediation in water as potential contaminants. The results suggested that the electronic coupleing system exhibits excellent photocatalytic activity, mainly due to affecting light absorption and higher e−/h+ separation efficiency. The photocatalytic activity of the silver-deposited graphene-supported silver and titanium dioxide was 4.3 and 2.5 times for Cr (VI) and TC remediation, respectively. Furthermore, the service life of the photocatalyst was also evaluated within five recycling studies, indicating that the efficiency of the obtained photocatalyst was maintained above 80%. Electron paramagnetic resonance spectroscopy and the addition of free radical scavengers confirmed that e− act as reducing agents and may be the key (O2 ·−) to the degradation process. The photocatalytic mechanism was proposed based on the studies obtained. Green catalysts based on graphene-based ternary composites developed in this work can provide effective and economic remediation at higher scale and offer practical application of photo catalysis technology.",
keywords = "Graphene oxide, Photocatalyst, Ternary composites, Titanium dioxide",
author = "Yaqi Hou and Shengyan Pu and Qingqing Shi and Sandip Mandal and Hui Ma and Shengyang Xue and Guojun Cai and Yingchen Bai",
year = "2019",
month = nov,
doi = "10.1016/j.jtice.2019.08.023",
language = "English",
volume = "104",
pages = "139--150",
journal = "Journal of the Chinese Institute of Chemical Engineers",
issn = "1876-1070",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Ultrasonic impregnation assisted in-situ photoreduction deposition synthesis of Ag/TiO2/rGO ternary composites with synergistic enhanced photocatalytic activity

AU - Hou, Yaqi

AU - Pu, Shengyan

AU - Shi, Qingqing

AU - Mandal, Sandip

AU - Ma, Hui

AU - Xue, Shengyang

AU - Cai, Guojun

AU - Bai, Yingchen

PY - 2019/11

Y1 - 2019/11

N2 - New approaches and practices to improve photocatalytic efficiency of materials for remediation of organic and inorganic pollutant has become a top priority. We have developed a graphene-oxide based ternary composite Ag/TiO2/rGO as a green catalyst, and the photocatalytic oxidation and reduction efficiency of the catalyst was thoroughly evaluated for Cr(VI) and tetracycline (TC) remediation in water as potential contaminants. The results suggested that the electronic coupleing system exhibits excellent photocatalytic activity, mainly due to affecting light absorption and higher e−/h+ separation efficiency. The photocatalytic activity of the silver-deposited graphene-supported silver and titanium dioxide was 4.3 and 2.5 times for Cr (VI) and TC remediation, respectively. Furthermore, the service life of the photocatalyst was also evaluated within five recycling studies, indicating that the efficiency of the obtained photocatalyst was maintained above 80%. Electron paramagnetic resonance spectroscopy and the addition of free radical scavengers confirmed that e− act as reducing agents and may be the key (O2 ·−) to the degradation process. The photocatalytic mechanism was proposed based on the studies obtained. Green catalysts based on graphene-based ternary composites developed in this work can provide effective and economic remediation at higher scale and offer practical application of photo catalysis technology.

AB - New approaches and practices to improve photocatalytic efficiency of materials for remediation of organic and inorganic pollutant has become a top priority. We have developed a graphene-oxide based ternary composite Ag/TiO2/rGO as a green catalyst, and the photocatalytic oxidation and reduction efficiency of the catalyst was thoroughly evaluated for Cr(VI) and tetracycline (TC) remediation in water as potential contaminants. The results suggested that the electronic coupleing system exhibits excellent photocatalytic activity, mainly due to affecting light absorption and higher e−/h+ separation efficiency. The photocatalytic activity of the silver-deposited graphene-supported silver and titanium dioxide was 4.3 and 2.5 times for Cr (VI) and TC remediation, respectively. Furthermore, the service life of the photocatalyst was also evaluated within five recycling studies, indicating that the efficiency of the obtained photocatalyst was maintained above 80%. Electron paramagnetic resonance spectroscopy and the addition of free radical scavengers confirmed that e− act as reducing agents and may be the key (O2 ·−) to the degradation process. The photocatalytic mechanism was proposed based on the studies obtained. Green catalysts based on graphene-based ternary composites developed in this work can provide effective and economic remediation at higher scale and offer practical application of photo catalysis technology.

KW - Graphene oxide

KW - Photocatalyst

KW - Ternary composites

KW - Titanium dioxide

U2 - 10.1016/j.jtice.2019.08.023

DO - 10.1016/j.jtice.2019.08.023

M3 - Journal article

AN - SCOPUS:85073028473

VL - 104

SP - 139

EP - 150

JO - Journal of the Chinese Institute of Chemical Engineers

JF - Journal of the Chinese Institute of Chemical Engineers

SN - 1876-1070

ER -

ID: 234212771