Growth of photocatalytic CdSe-Pt nanorods and nanonets

Einat Elmalem; Aaron E. Saunders; Ronny Costi; Asaf Salant; Uri Banin

doi:10.1002/adma.200800044

Growth of photocatalytic CdSe-Pt nanorods and nanonets

Einat Elmalem^*, Aaron E. Saunders, Ronny Costi, Asaf Salant, Uri Banin

^*Corresponding author for this work

Institute of Chemistry

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

216 Scopus citations

Abstract

A study was conducted to demonstrate the growth of photocatalytic CdSe-Pt nanorods and nanonets. CdSe nanorods were synthesized by high-temperature pyrolysis of suitable precursors in a coordinating solvent, containing a mixture of TOPO and phosphonic acids. The CdSe nanorods were transferred into an aqueous solution by exchanging the organic capping ligands with water-soluble MUA. Improved photocatalysis was observed in nanonets compared to nanorods. The photocatalysis was found to be consistent with the smaller mean size of the Pt dots at acidic pH, leading to enhanced reactivity. It was also observed the nanorod surface coverage, with Pt dots is denser than in basic conditions in acidic conditions. It was showed this condition provided more catalytic sites on the CdSe-Pt nanonets, in comparison to the CdSe-Pt nanorods.

Original language	English
Pages (from-to)	4312-4317
Number of pages	6
Journal	Advanced Materials
Volume	20
Issue number	22
DOIs	https://doi.org/10.1002/adma.200800044
State	Published - 18 Nov 2008

Access to Document

10.1002/adma.200800044

Cite this

@article{63dfb86e365647c2989d56525d71ce80,

title = "Growth of photocatalytic CdSe-Pt nanorods and nanonets",

abstract = "A study was conducted to demonstrate the growth of photocatalytic CdSe-Pt nanorods and nanonets. CdSe nanorods were synthesized by high-temperature pyrolysis of suitable precursors in a coordinating solvent, containing a mixture of TOPO and phosphonic acids. The CdSe nanorods were transferred into an aqueous solution by exchanging the organic capping ligands with water-soluble MUA. Improved photocatalysis was observed in nanonets compared to nanorods. The photocatalysis was found to be consistent with the smaller mean size of the Pt dots at acidic pH, leading to enhanced reactivity. It was also observed the nanorod surface coverage, with Pt dots is denser than in basic conditions in acidic conditions. It was showed this condition provided more catalytic sites on the CdSe-Pt nanonets, in comparison to the CdSe-Pt nanorods.",

author = "Einat Elmalem and Saunders, {Aaron E.} and Ronny Costi and Asaf Salant and Uri Banin",

year = "2008",

month = nov,

day = "18",

doi = "10.1002/adma.200800044",

language = "אנגלית",

volume = "20",

pages = "4312--4317",

journal = "Advanced Materials",

issn = "0935-9648",

publisher = "Wiley-Blackwell",

number = "22",

}

TY - JOUR

T1 - Growth of photocatalytic CdSe-Pt nanorods and nanonets

AU - Elmalem, Einat

AU - Saunders, Aaron E.

AU - Costi, Ronny

AU - Salant, Asaf

AU - Banin, Uri

PY - 2008/11/18

Y1 - 2008/11/18

N2 - A study was conducted to demonstrate the growth of photocatalytic CdSe-Pt nanorods and nanonets. CdSe nanorods were synthesized by high-temperature pyrolysis of suitable precursors in a coordinating solvent, containing a mixture of TOPO and phosphonic acids. The CdSe nanorods were transferred into an aqueous solution by exchanging the organic capping ligands with water-soluble MUA. Improved photocatalysis was observed in nanonets compared to nanorods. The photocatalysis was found to be consistent with the smaller mean size of the Pt dots at acidic pH, leading to enhanced reactivity. It was also observed the nanorod surface coverage, with Pt dots is denser than in basic conditions in acidic conditions. It was showed this condition provided more catalytic sites on the CdSe-Pt nanonets, in comparison to the CdSe-Pt nanorods.

AB - A study was conducted to demonstrate the growth of photocatalytic CdSe-Pt nanorods and nanonets. CdSe nanorods were synthesized by high-temperature pyrolysis of suitable precursors in a coordinating solvent, containing a mixture of TOPO and phosphonic acids. The CdSe nanorods were transferred into an aqueous solution by exchanging the organic capping ligands with water-soluble MUA. Improved photocatalysis was observed in nanonets compared to nanorods. The photocatalysis was found to be consistent with the smaller mean size of the Pt dots at acidic pH, leading to enhanced reactivity. It was also observed the nanorod surface coverage, with Pt dots is denser than in basic conditions in acidic conditions. It was showed this condition provided more catalytic sites on the CdSe-Pt nanonets, in comparison to the CdSe-Pt nanorods.

UR - http://www.scopus.com/inward/record.url?scp=56349161528&partnerID=8YFLogxK

U2 - 10.1002/adma.200800044

DO - 10.1002/adma.200800044

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:56349161528

SN - 0935-9648

VL - 20

SP - 4312

EP - 4317

JO - Advanced Materials

JF - Advanced Materials

IS - 22

ER -

Growth of photocatalytic CdSe-Pt nanorods and nanonets

Abstract

Access to Document

Other files and links

Fingerprint

Cite this