Rate redox-controlled green photosynthesis of gold nanoparticles using H 3+xPMo 12-xV xO 40

Ali Ayati; Ali Ahmadpour; Fatemeh F. Bamoharram; Majid M. Heravi; Mika Sillanpää

doi:10.1007/s13404-012-0058-5

Rate redox-controlled green photosynthesis of gold nanoparticles using H _3+xPMo _12-xV _xO ₄₀

Ali Ayati, Ali Ahmadpour, Fatemeh F. Bamoharram, Majid M. Heravi, Mika Sillanpää

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

Stabilized and size-controlled gold nanoparticles were synthesized using molybdophosphoric acid (H ₃[PMo ₁₂O ₄₀], HPMo) and its vanadium-substituted mixed addenda (H _3+x[PMo _12-xV _xO ₄₀], (x00-3); and HPMoV _x) under UV irradiation by a simple green method. In the process, HPMo and HPMoV _x play the role of photocatalyst, reducing agent and efficient stabilizer. Control of gold nanoparticles size was achieved by variation of initial gold ions concentration and molar ratio of HPMo to gold ions. The synthesis rate of Au nanoparticles was found to be parallel to an increasing x value in the order of: HPMoV ₃>HPMoV ₂ > HPMoV>HPMo, which leads to smaller and more uniform particles. Also, by substitution of vanadium instead of molybdenum in the HPMo formula, the morphology of nanoparticles was gradually changed from spherical-shaped nanoparticles in the presence of HPMo to nanorods in the case of HPMoV ₃.

Original language	English
Pages (from-to)	145-151
Number of pages	7
Journal	Gold Bulletin
Volume	45
Issue number	3
DOIs	https://doi.org/10.1007/s13404-012-0058-5
Publication status	Published - Sept 2012
Externally published	Yes

Keywords

Gold
Molybdophosphoric acid
Nanoparticle
Nanorod
UV irradiation
Vanadium

ASJC Scopus subject areas

General Materials Science
Inorganic Chemistry

Access to Document

10.1007/s13404-012-0058-5

Cite this

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title = "Rate redox-controlled green photosynthesis of gold nanoparticles using H 3+xPMo 12-xV xO 40 ",

abstract = "Stabilized and size-controlled gold nanoparticles were synthesized using molybdophosphoric acid (H 3[PMo 12O 40], HPMo) and its vanadium-substituted mixed addenda (H 3+x[PMo 12-xV xO 40], (x00-3); and HPMoV x) under UV irradiation by a simple green method. In the process, HPMo and HPMoV x play the role of photocatalyst, reducing agent and efficient stabilizer. Control of gold nanoparticles size was achieved by variation of initial gold ions concentration and molar ratio of HPMo to gold ions. The synthesis rate of Au nanoparticles was found to be parallel to an increasing x value in the order of: HPMoV 3>HPMoV 2 > HPMoV>HPMo, which leads to smaller and more uniform particles. Also, by substitution of vanadium instead of molybdenum in the HPMo formula, the morphology of nanoparticles was gradually changed from spherical-shaped nanoparticles in the presence of HPMo to nanorods in the case of HPMoV 3.",

keywords = "Gold, Molybdophosphoric acid, Nanoparticle, Nanorod, UV irradiation, Vanadium",

author = "Ali Ayati and Ali Ahmadpour and Bamoharram, {Fatemeh F.} and Heravi, {Majid M.} and Mika Sillanp{\"a}{\"a}",

year = "2012",

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doi = "10.1007/s13404-012-0058-5",

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pages = "145--151",

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T1 - Rate redox-controlled green photosynthesis of gold nanoparticles using H 3+xPMo 12-xV xO 40

AU - Ayati, Ali

AU - Ahmadpour, Ali

AU - Bamoharram, Fatemeh F.

AU - Heravi, Majid M.

AU - Sillanpää, Mika

PY - 2012/9

Y1 - 2012/9

N2 - Stabilized and size-controlled gold nanoparticles were synthesized using molybdophosphoric acid (H 3[PMo 12O 40], HPMo) and its vanadium-substituted mixed addenda (H 3+x[PMo 12-xV xO 40], (x00-3); and HPMoV x) under UV irradiation by a simple green method. In the process, HPMo and HPMoV x play the role of photocatalyst, reducing agent and efficient stabilizer. Control of gold nanoparticles size was achieved by variation of initial gold ions concentration and molar ratio of HPMo to gold ions. The synthesis rate of Au nanoparticles was found to be parallel to an increasing x value in the order of: HPMoV 3>HPMoV 2 > HPMoV>HPMo, which leads to smaller and more uniform particles. Also, by substitution of vanadium instead of molybdenum in the HPMo formula, the morphology of nanoparticles was gradually changed from spherical-shaped nanoparticles in the presence of HPMo to nanorods in the case of HPMoV 3.

AB - Stabilized and size-controlled gold nanoparticles were synthesized using molybdophosphoric acid (H 3[PMo 12O 40], HPMo) and its vanadium-substituted mixed addenda (H 3+x[PMo 12-xV xO 40], (x00-3); and HPMoV x) under UV irradiation by a simple green method. In the process, HPMo and HPMoV x play the role of photocatalyst, reducing agent and efficient stabilizer. Control of gold nanoparticles size was achieved by variation of initial gold ions concentration and molar ratio of HPMo to gold ions. The synthesis rate of Au nanoparticles was found to be parallel to an increasing x value in the order of: HPMoV 3>HPMoV 2 > HPMoV>HPMo, which leads to smaller and more uniform particles. Also, by substitution of vanadium instead of molybdenum in the HPMo formula, the morphology of nanoparticles was gradually changed from spherical-shaped nanoparticles in the presence of HPMo to nanorods in the case of HPMoV 3.

KW - Gold

KW - Molybdophosphoric acid

KW - Nanoparticle

KW - Nanorod

KW - UV irradiation

KW - Vanadium

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