Rare-Earth-Modified Copper-Oxalate-Derived CuO Nanostructures for Rapid Methyl Orange Photodegradation Under Simulated Solar Irradiation.

Hangning Wang, Rifath Bin Hossain, Yanling Yang, Mengran Wu, Xinyu Dai, Fengxiang Qin

Abstract read

In one paragraph

Article in Nanomaterials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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Authors and funding

6 authors.

Hangning WangSchool of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.ORCID 0009-0001-0971-3555

Rifath Bin HossainSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.ORCID 0009-0004-3185-4014

Yanling YangFujian Key Laboratory of Flexible Electronics, Strait Institute of Flexible Electronics (SIFE Future Technologies), Fujian Normal University, Fuzhou 350117, China.

Mengran WuSchool of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.

Xinyu DaiSchool of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.

Fengxiang QinSchool of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China.

Funding

National Natural Science Foundation of China 52371157 and 51671106

6 · The paper itself

Abstract

Efficient photocatalytic degradation of azo dyes requires coordinated control of nanostructure, surface chemical environment, and interfacial charge transport. In this work, rare-earth-modified copper-oxalate-derived CuO nanostructures (RE = Ce, Sm, Er, Tm, and Yb) were prepared through hydrothermal synthesis of a copper oxalate precursor, followed by calcination and ultrasonic-assisted RE modification. Structural, spectroscopic, optical, and electrochemical analyses show RE-associated apparent lattice perturbation, modified surface oxygen environments, stronger visible-region optical responses, higher apparent majority-carrier-density descriptors, and lower fitted interfacial charge-transfer resistance relative to pristine CuO. Among the samples, Ce-CuO exhibited the best performance, with a band gap of 1.48 eV, an apparent majority-carrier density of (1.94 ± 0.04) × 10

Indexed as

copper-oxalate-derived CuOinterfacial charge transferrare-earth modulationsimulated solar photocatalysis

Identifiers

PMID42584302

DOI10.3390/nano16150908

PMCPMC13468492

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.