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Volume 16
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10.3390/cryst16070435
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Article

Low Temperature Synthesis of Ag2MoO4/BiOCl Heterojunctions with Oxygen Vacancies for Improved Pollutant Degradation

by
Shuai Fu
1,2,*,
Wanyu Pu
1,
Qiang Huang
1,2,
Huijie Zhu
1,2,*,
Junhong Bie
3,
Qi Liu
1,2,
Bei Zang
1,
Zhixi Zhao
4,
Ying Wang
5 and
Hongqiang Wang
6
1
Henan Key Laboratory of Green Building Materials Manufacturing and Intelligent Equipment, School of Intelligent Construction and Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China
2
Henan Engineering Research Center of Water Quality Safety in the Middle-Lower Yellow River, Henan Green Technology Innovation Demonstration Base, Luoyang 471023, China
3
School of Environmental Science, Liaoning University, Shenyang 110036, China
4
College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830000, China
5
School of Ecology and Environment, Ningxia University, Yinchuan 750021, China
6
School of Resource & Environment and Safety Engineering, University of South China, Hengyang 421001, China
*
Authors to whom correspondence should be addressed.
Crystals 2026, 16(7), 435; https://doi.org/10.3390/cryst16070435
Submission received: 5 May 2026 / Revised: 26 June 2026 / Accepted: 30 June 2026 / Published: 4 July 2026
(This article belongs to the Section Inorganic Crystalline Materials)
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Abstract

The Z-scheme Ag2MoO4/BiOCl heterojunction with oxygen vacancies was successfully fabricated at a low temperature via a simple in situ precipitation method. The morphological, structural, and optical characteristics of the Ag2MoO4/BiOCl heterojunction were systematically examined. The optimized synthesized Ag2MoO4/BiOCl heterojunction achieved a removal rate of 80.44% for ciprofloxacin within 180 min of simulated solar irradiation, which was 3.27 and 1.90 times higher than that of pure Ag2MoO4 and BiOCl, respectively. The fabricated Z-scheme heterojunction and oxygen vacancies optimize the electron transfer route, enhancing the separation efficiency of photogenerated electrons and holes. Moreover, the active species trapping experiments and ESR analyses demonstrated that holes were the primary reactive species involved in the photocatalytic process. It was hypothesized that the Ag2MoO4/BiOCl heterojunction adhered to a Z-scheme mechanism for charge transfer. The straightforward approach opened up novel avenues for the synthesis of efficient BiOCl-based photocatalysts aimed at environmental remediation.
Keywords: Ag2MoO4/BiOCl; Z-scheme; oxygen vacancies; heterojunction; degradation Ag2MoO4/BiOCl; Z-scheme; oxygen vacancies; heterojunction; degradation

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MDPI and ACS Style

Fu, S.; Pu, W.; Huang, Q.; Zhu, H.; Bie, J.; Liu, Q.; Zang, B.; Zhao, Z.; Wang, Y.; Wang, H. Low Temperature Synthesis of Ag2MoO4/BiOCl Heterojunctions with Oxygen Vacancies for Improved Pollutant Degradation. Crystals 2026, 16, 435. https://doi.org/10.3390/cryst16070435

AMA Style

Fu S, Pu W, Huang Q, Zhu H, Bie J, Liu Q, Zang B, Zhao Z, Wang Y, Wang H. Low Temperature Synthesis of Ag2MoO4/BiOCl Heterojunctions with Oxygen Vacancies for Improved Pollutant Degradation. Crystals. 2026; 16(7):435. https://doi.org/10.3390/cryst16070435

Chicago/Turabian Style

Fu, Shuai, Wanyu Pu, Qiang Huang, Huijie Zhu, Junhong Bie, Qi Liu, Bei Zang, Zhixi Zhao, Ying Wang, and Hongqiang Wang. 2026. "Low Temperature Synthesis of Ag2MoO4/BiOCl Heterojunctions with Oxygen Vacancies for Improved Pollutant Degradation" Crystals 16, no. 7: 435. https://doi.org/10.3390/cryst16070435

APA Style

Fu, S., Pu, W., Huang, Q., Zhu, H., Bie, J., Liu, Q., Zang, B., Zhao, Z., Wang, Y., & Wang, H. (2026). Low Temperature Synthesis of Ag2MoO4/BiOCl Heterojunctions with Oxygen Vacancies for Improved Pollutant Degradation. Crystals, 16(7), 435. https://doi.org/10.3390/cryst16070435

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