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

^*Corresponding author for this work

Research output: Journal Publication › Article › peer-review

62 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

Free 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",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = sep,

day = "20",

doi = "10.1016/j.colsurfa.2020.124984",

language = "English",

volume = "601",

journal = "Colloids and Surfaces A: Physicochemical and Engineering Aspects",

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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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U2 - 10.1016/j.colsurfa.2020.124984

DO - 10.1016/j.colsurfa.2020.124984

M3 - Article

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M1 - 124984

ER -

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