Effect of temperature and reaction time on the morphology of L-cysteine surface capped chalcocite (Cu2S) snowflakes dendrites nanoleaves and photodegradation study of methyl orange dye under visible light

Shahid Iqbal; Ali Bahadur; Shoaib Anwer; Shahid Ali; Rana Muhammad Irfan; Hao Li; Muhammad Shoaib; Muhammad Raheel; Tehseen Ali Anjum; Muhammad Zulqarnain

doi:10.1016/j.colsurfa.2020.124984

Effect of temperature and reaction time on the morphology of L-cysteine surface capped chalcocite (Cu₂S) snowflakes dendrites nanoleaves and photodegradation study of methyl orange dye under visible light

Shahid Iqbal, Ali Bahadur, Shoaib Anwer, Shahid Ali, Rana Muhammad Irfan, Hao Li, Muhammad Shoaib, Muhammad Raheel, Tehseen Ali Anjum, Muhammad Zulqarnain

Research output: Journal Publication › Article › peer-review

53 Citations (Scopus)

Abstract

Template-free, the facile hydrothermal route was used for the synthesis of pure self-assembled L-cysteine stabilized chalcocite nanoleaves (Cu₂S@L-Cys NLs) with the best control of size, phase purity structure, morphology, and electrochemical properties. Effect of temperature (100–180 °C) and reaction time (8−24 h) were studied on the morphology of chalcocite Cu₂S@L-Cys NLs snowflakes dendrites. By changing these factors, different morphologies such as irregular, regular, trigonal, hexagonal nanoleaf, and snowflakes dendrites like shapes were observed. Cu₂S@L-Cys NLs were fabricated by using ethylenediamine (EDA) as a solvent. The photocatalytic performances of as-prepared Cu₂S@L-Cys snowflake dendrites (NL3) and Cu₂S@L-Cys irregular hexagram (NL4) in the degradation of methyl orange (MO) were examined under visible light. The noteworthy, unique bandgap (Cu₂S@L-Cys snowflake dendrites NLs (1.55 eV) and Cu₂S@L-Cys irregular hexagram NLs (1.58 eV) and the special morphology of Cu₂S@L-Cys NLs increases the active sites for adsorption of dye, which causes extraordinary degradation activity. Furthermore, the L-cysteine (L-Cys) protective layer could efficiently alleviate the photocorrosion of Cu₂S, giving rise to excellent stability. Cu₂S@L-Cys NLs were reused successfully for photodegradation of dye due to the recycling ability of Cu₂S@L-Cys NLs. The Cu₂S@L-Cys snowflake dendrites NLs showed improved photocatalytic activity as compared to Cu₂S@L-Cys irregular hexagram NLs. The improved surface area of Cu₂S@L-Cys snowflake dendrites NLs, compared to that of the Cu₂S@L-Cys irregular hexagram NLs, may be ascribed to the fact that snowflakes dendrites can support the growth and more surface-active sites of Cu₂S@L-Cys. These results strongly suggest that the Cu₂S@L-Cys snowflake dendrites are promising candidates for photocatalytic dye degradation.

Original language	English
Article number	124984
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	601
DOIs	https://doi.org/10.1016/j.colsurfa.2020.124984
Publication status	Published - 20 Sept 2020
Externally published	Yes

Keywords

Dye degradation
Morphology controlled
Nanosheet
Photocatalyst
Snowflakes dendrites

ASJC Scopus subject areas

Surfaces and Interfaces
Physical and Theoretical Chemistry
Colloid and Surface Chemistry

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Iqbal, S., Bahadur, A., Anwer, S., Ali, S., Irfan, R. M., Li, H., Shoaib, M., Raheel, M., Anjum, T. A., & Zulqarnain, M. (2020). Effect of temperature and reaction time on the morphology of L-cysteine surface capped chalcocite (Cu₂S) snowflakes dendrites nanoleaves and photodegradation study of methyl orange dye under visible light. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 601, Article 124984. https://doi.org/10.1016/j.colsurfa.2020.124984

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title = "Effect of temperature and reaction time on the morphology of L-cysteine surface capped chalcocite (Cu2S) snowflakes dendrites nanoleaves and photodegradation study of methyl orange dye under visible light",

abstract = "Template-free, the facile hydrothermal route was used for the synthesis of pure self-assembled L-cysteine stabilized chalcocite nanoleaves (Cu2S@L-Cys NLs) with the best control of size, phase purity structure, morphology, and electrochemical properties. Effect of temperature (100–180 °C) and reaction time (8−24 h) were studied on the morphology of chalcocite Cu2S@L-Cys NLs snowflakes dendrites. By changing these factors, different morphologies such as irregular, regular, trigonal, hexagonal nanoleaf, and snowflakes dendrites like shapes were observed. Cu2S@L-Cys NLs were fabricated by using ethylenediamine (EDA) as a solvent. The photocatalytic performances of as-prepared Cu2S@L-Cys snowflake dendrites (NL3) and Cu2S@L-Cys irregular hexagram (NL4) in the degradation of methyl orange (MO) were examined under visible light. The noteworthy, unique bandgap (Cu2S@L-Cys snowflake dendrites NLs (1.55 eV) and Cu2S@L-Cys irregular hexagram NLs (1.58 eV) and the special morphology of Cu2S@L-Cys NLs increases the active sites for adsorption of dye, which causes extraordinary degradation activity. Furthermore, the L-cysteine (L-Cys) protective layer could efficiently alleviate the photocorrosion of Cu2S, giving rise to excellent stability. Cu2S@L-Cys NLs were reused successfully for photodegradation of dye due to the recycling ability of Cu2S@L-Cys NLs. The Cu2S@L-Cys snowflake dendrites NLs showed improved photocatalytic activity as compared to Cu2S@L-Cys irregular hexagram NLs. The improved surface area of Cu2S@L-Cys snowflake dendrites NLs, compared to that of the Cu2S@L-Cys irregular hexagram NLs, may be ascribed to the fact that snowflakes dendrites can support the growth and more surface-active sites of Cu2S@L-Cys. These results strongly suggest that the Cu2S@L-Cys snowflake dendrites are promising candidates for photocatalytic dye degradation.",

keywords = "Dye degradation, Morphology controlled, Nanosheet, Photocatalyst, Snowflakes dendrites",

author = "Shahid Iqbal and Ali Bahadur and Shoaib Anwer and Shahid Ali and Irfan, {Rana Muhammad} and Hao Li and Muhammad Shoaib and Muhammad Raheel and Anjum, {Tehseen Ali} and Muhammad Zulqarnain",

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language = "English",

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Iqbal, S, Bahadur, A, Anwer, S, Ali, S, Irfan, RM, Li, H, Shoaib, M, Raheel, M, Anjum, TA & Zulqarnain, M 2020, 'Effect of temperature and reaction time on the morphology of L-cysteine surface capped chalcocite (Cu₂S) snowflakes dendrites nanoleaves and photodegradation study of methyl orange dye under visible light', Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 601, 124984. https://doi.org/10.1016/j.colsurfa.2020.124984

Effect of temperature and reaction time on the morphology of L-cysteine surface capped chalcocite (Cu₂S) snowflakes dendrites nanoleaves and photodegradation study of methyl orange dye under visible light. / Iqbal, Shahid; Bahadur, Ali; Anwer, Shoaib et al.
In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 601, 124984, 20.09.2020.

Research output: Journal Publication › Article › peer-review

TY - JOUR

T1 - Effect of temperature and reaction time on the morphology of L-cysteine surface capped chalcocite (Cu2S) snowflakes dendrites nanoleaves and photodegradation study of methyl orange dye under visible light

AU - Iqbal, Shahid

AU - Bahadur, Ali

AU - Anwer, Shoaib

AU - Ali, Shahid

AU - Irfan, Rana Muhammad

AU - Li, Hao

AU - Shoaib, Muhammad

AU - Raheel, Muhammad

AU - Anjum, Tehseen Ali

AU - Zulqarnain, Muhammad

PY - 2020/9/20

Y1 - 2020/9/20

N2 - Template-free, the facile hydrothermal route was used for the synthesis of pure self-assembled L-cysteine stabilized chalcocite nanoleaves (Cu2S@L-Cys NLs) with the best control of size, phase purity structure, morphology, and electrochemical properties. Effect of temperature (100–180 °C) and reaction time (8−24 h) were studied on the morphology of chalcocite Cu2S@L-Cys NLs snowflakes dendrites. By changing these factors, different morphologies such as irregular, regular, trigonal, hexagonal nanoleaf, and snowflakes dendrites like shapes were observed. Cu2S@L-Cys NLs were fabricated by using ethylenediamine (EDA) as a solvent. The photocatalytic performances of as-prepared Cu2S@L-Cys snowflake dendrites (NL3) and Cu2S@L-Cys irregular hexagram (NL4) in the degradation of methyl orange (MO) were examined under visible light. The noteworthy, unique bandgap (Cu2S@L-Cys snowflake dendrites NLs (1.55 eV) and Cu2S@L-Cys irregular hexagram NLs (1.58 eV) and the special morphology of Cu2S@L-Cys NLs increases the active sites for adsorption of dye, which causes extraordinary degradation activity. Furthermore, the L-cysteine (L-Cys) protective layer could efficiently alleviate the photocorrosion of Cu2S, giving rise to excellent stability. Cu2S@L-Cys NLs were reused successfully for photodegradation of dye due to the recycling ability of Cu2S@L-Cys NLs. The Cu2S@L-Cys snowflake dendrites NLs showed improved photocatalytic activity as compared to Cu2S@L-Cys irregular hexagram NLs. The improved surface area of Cu2S@L-Cys snowflake dendrites NLs, compared to that of the Cu2S@L-Cys irregular hexagram NLs, may be ascribed to the fact that snowflakes dendrites can support the growth and more surface-active sites of Cu2S@L-Cys. These results strongly suggest that the Cu2S@L-Cys snowflake dendrites are promising candidates for photocatalytic dye degradation.

AB - Template-free, the facile hydrothermal route was used for the synthesis of pure self-assembled L-cysteine stabilized chalcocite nanoleaves (Cu2S@L-Cys NLs) with the best control of size, phase purity structure, morphology, and electrochemical properties. Effect of temperature (100–180 °C) and reaction time (8−24 h) were studied on the morphology of chalcocite Cu2S@L-Cys NLs snowflakes dendrites. By changing these factors, different morphologies such as irregular, regular, trigonal, hexagonal nanoleaf, and snowflakes dendrites like shapes were observed. Cu2S@L-Cys NLs were fabricated by using ethylenediamine (EDA) as a solvent. The photocatalytic performances of as-prepared Cu2S@L-Cys snowflake dendrites (NL3) and Cu2S@L-Cys irregular hexagram (NL4) in the degradation of methyl orange (MO) were examined under visible light. The noteworthy, unique bandgap (Cu2S@L-Cys snowflake dendrites NLs (1.55 eV) and Cu2S@L-Cys irregular hexagram NLs (1.58 eV) and the special morphology of Cu2S@L-Cys NLs increases the active sites for adsorption of dye, which causes extraordinary degradation activity. Furthermore, the L-cysteine (L-Cys) protective layer could efficiently alleviate the photocorrosion of Cu2S, giving rise to excellent stability. Cu2S@L-Cys NLs were reused successfully for photodegradation of dye due to the recycling ability of Cu2S@L-Cys NLs. The Cu2S@L-Cys snowflake dendrites NLs showed improved photocatalytic activity as compared to Cu2S@L-Cys irregular hexagram NLs. The improved surface area of Cu2S@L-Cys snowflake dendrites NLs, compared to that of the Cu2S@L-Cys irregular hexagram NLs, may be ascribed to the fact that snowflakes dendrites can support the growth and more surface-active sites of Cu2S@L-Cys. These results strongly suggest that the Cu2S@L-Cys snowflake dendrites are promising candidates for photocatalytic dye degradation.

KW - Dye degradation

KW - Morphology controlled

KW - Nanosheet

KW - Photocatalyst

KW - Snowflakes dendrites

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Iqbal S, Bahadur A, Anwer S, Ali S, Irfan RM, Li H et al. Effect of temperature and reaction time on the morphology of L-cysteine surface capped chalcocite (Cu₂S) snowflakes dendrites nanoleaves and photodegradation study of methyl orange dye under visible light. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2020 Sept 20;601:124984. doi: 10.1016/j.colsurfa.2020.124984