Enhanced solar light driven hydrogen generation and environment remediation through Nd incorporated ZnIn2S4

R. Janani, G. Sudha Priyanga, Santosh Behara, Ambrose Ashwin Melvin, A. R.M. Shaheer, Tiju Thomas, Bernaurdshaw Neppolian, Shubra Singh

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Visible-light-driven hydrogen production is a promising pathway to realize efficient solar energy utilization. Here, Nd3+ incorporated ZnIn2S4 (Nd-ZIS) was synthesized via facile one step hydrothermal method. Raman spectroscopy and X-ray Photoelectron Spectroscopy (XPS) confirm the successful incorporation of Nd3+ in ZnIn2S4. Optical studies reveal the reduction of effective bandgap from 2.7 eV to 2.54 eV upon incorporation of Nd3+ with improved charge carrier life time of 3.12 ns. Electronic properties of ZIS and Nd-ZIS were investigated from first principle calculations. An attempt to improve photocatalytic activity of ZIS by modification with Nd3+ ions resulted in degradation of organic pollutant up to 98% under natural sunlight and decrease in life time of trap states up to a nominal value of 200 ms (as evident from photoelectrochemical measurements). The mechanism behind enhancement of photocatalytic activity of ZIS post Nd3+ integration has been proposed. Nd-ZIS was also utilized for water splitting activity exhibiting a considerable H2 generation ∼3415 μmol g−1. To the best of our knowledge, activity of Nd3+ incorporated ZIS has been explored for the first time in present work. It is believed that an in-depth understanding of photoactivity of ZIS would be significantly important for designing materials with desired photocatalytic performance in future.

Original languageEnglish
Pages (from-to)2031-2040
Number of pages10
JournalRenewable Energy
StatePublished - 1 Dec 2020
Externally publishedYes


  • Hierarchical microflowers
  • Hydrogen generation
  • Nd incorporated ZnInS
  • Photocatalytic degradation
  • Photoelectrochemical

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment


Dive into the research topics of 'Enhanced solar light driven hydrogen generation and environment remediation through Nd incorporated ZnIn2S4'. Together they form a unique fingerprint.

Cite this