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Chemistry
Thailand
2026

D-Index & Metrics

Chemistry

D-Index
57
Citations
9168
World Ranking
11346
National Ranking
10

Sumaeth Chavadej publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Sumaeth Chavadej sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 216 publications — 38th percentile

38% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Sumaeth Chavadej D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Sumaeth Chavadej sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 57 D-Index — 39th percentile

39% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Chemistry in Thailand Leader Award
  • 2025 - Research.com Chemistry in Thailand Leader Award

Overview

Sumaeth Chavadej is affiliated with Chulalongkorn University in Thailand. Their research primarily focuses on engineering and environmental science, contributing extensively to topics related to anaerobic digestion and biogas production, membrane separation technologies, and wastewater treatment and nitrogen removal. Additional areas of study include plasma applications and diagnostics, catalytic processes in materials science, microbial fuel cells and bioremediation, and biodiesel production and applications.

Their published work covers several subfields of study, including building and construction, water science and technology, pollution, materials chemistry, and radiology, nuclear medicine and imaging. These areas highlight a multidisciplinary approach intersecting environmental technology and chemical engineering.

Frequent collaborators in their research include Kessara Seneesrisakul, Krittiya Pornmai, Achiraya Jiraprasertwong, Malee Santikunaporn, and Sawwalak Itsadanont. These coauthors have jointly contributed to advancing knowledge in bioenergy, wastewater treatment, and related engineering applications.

Common venues for Sumaeth Chavadej's publications are:

  • Energy
  • Plasma Chemistry and Plasma Processing
  • Bioresource Technology
  • Colloids and Surfaces A Physicochemical and Engineering Aspects
  • The Science of The Total Environment

Some of their recent research articles include:

  • High methanogenic activity of a three-stage UASB in relation to the granular sludge formation, 2020, The Science of The Total Environment
  • Influences of specific surfactant structures on biohydrogen production from oily wastewater in batch and continuous anaerobic dark fermentation, 2022, Bioresource Technology
  • Optimization of Biodiesel Production from Waste Cooking Oil in a Continuous Mesoscale Oscillatory Baffled Reactor, 2020, Engineering Journal
  • Motor oil removal from water by continuous froth flotation: The influence of surfactant structure on interfacial adsorption and foam properties, 2021, Colloids and Surfaces A Physicochemical and Engineering Aspects
  • High process activity of a two-phase UASB (upflow anaerobic sludge blanket) receiving ethanol wastewater: Operational conditions in relation to granulation development, 2021, Biomass and Bioenergy

Best Publications

  • Dye-sensitized solar cell using natural dyes extracted from rosella and blue pea flowers

    Khwanchit Wongcharee;Vissanu Meeyoo;Sumaeth Chavadej

  • Structural and physicochemical characterization of crude biosurfactant produced by Pseudomonas aeruginosa SP4 isolated from petroleum-contaminated soil.

    Orathai Pornsunthorntawee;Panya Wongpanit;Sumaeth Chavadej;Masahiko Abe

  • Isolation and comparison of biosurfactants produced by Bacillus subtilis PT2 and Pseudomonas aeruginosa SP4 for microbial surfactant-enhanced oil recovery

    Orathai Pornsunthorntawee;Nampon Arttaweeporn;Sarawut Paisanjit;Pastra Somboonthanate

  • Hydrogen production from photocatalytic water splitting over mesoporous-assembled SrTiO3 nanocrystal-based photocatalysts

    Tarawipa Puangpetch;Thammanoon Sreethawong;Susumu Yoshikawa;Sumaeth Chavadej

  • Synthesis and photocatalytic activity in methyl orange degradation of mesoporous-assembled SrTiO3 nanocrystals prepared by sol–gel method with the aid of structure-directing surfactant

    Tarawipa Puangpetch;Thammanoon Sreethawong;Susumu Yoshikawa;Sumaeth Chavadej

  • Effect of Asphaltene Dispersants on Aggregate Size Distribution and Growth

    Kriangkrai Kraiwattanawong;H. Scott Fogler;Samir G. Gharfeh;Probjot Singh

  • Optimization of separate hydrogen and methane production from cassava wastewater using two-stage upflow anaerobic sludge blanket reactor (UASB) system under thermophilic operation.

    Patcharee Intanoo;Pramoch Rangsanvigit;Pomthong Malakul;Sumaeth Chavadej

  • Photocatalytic H2 production from water splitting under visible light irradiation using Eosin Y-sensitized mesoporous-assembled Pt/TiO2 nanocrystal photocatalyst

    Thammanoon Sreethawong;Chompoonuch Junbua;Sumaeth Chavadej

  • Hydrogen and methane production from cassava wastewater using two-stage upflow anaerobic sludge blanket reactors (UASB) with an emphasis on maximum hydrogen production

    Patcharee Intanoo;Patcharaporn Chaimongkol;Sumaeth Chavadej

  • Hydrogen production from cassava wastewater using an anaerobic sequencing batch reactor: Effects of operational parameters, COD:N ratio, and organic acid composition

    Thammanoon Sreethawong;Suchawadee Chatsiriwatana;Pramoch Rangsunvigit;Sumaeth Chavadej

  • Anionic and cationic surfactant recovery from water using a multistage foam fractionator

    Savanit Boonyasuwat;Sumaeth Chavadej;Pomthong Malakul;John F. Scamehorn

  • Effects of Pt and Ag on the photocatalytic degradation of 4-chlorophenol and its by-products

    Mantana Moonsiri;Pramoch Rangsunvigit;Sumaeth Chavadej;Erdogan Gulari

  • Partial oxidation of methane with air for synthesis gas production in a multistage gliding arc discharge system

    Thammanoon Sreethawong;Piyaphon Thakonpatthanakun;Sumaeth Chavadej

  • Purification and concentration of a rhamnolipid biosurfactant produced by Pseudomonas aeruginosa SP4 using foam fractionation.

    Thitima Sarachat;Orathai Pornsunthorntawee;Sumaeth Chavadej;Ratana Rujiravanit

  • Solution properties and vesicle formation of rhamnolipid biosurfactants produced by Pseudomonas aeruginosa SP4.

    Orathai Pornsunthorntawee;Sumaeth Chavadej;Ratana Rujiravanit

  • Catalytic activity of ethylene oxidation over Au, Ag and Au–Ag catalysts: Support effect

    Siriphong Rojluechai;Sumaeth Chavadej;Johannes W. Schwank;Vissanu Meeyoo

  • Conversion of methane to higher hydrocarbons in AC nonequilibrium plasmas

    K. Thanyachotpaiboon;S. Chavadej;T. A. Caldwell;L. L. Lobban

  • Comparative investigation of mesoporous- and non-mesoporous-assembled TiO2 nanocrystals for photocatalytic H2 production over N-doped TiO2 under visible light irradiation

    Thammanoon Sreethawong;Siriporn Laehsalee;Sumaeth Chavadej

  • Photocatalytic activity of nanocrystalline mesoporous-assembled TiO2 photocatalyst for degradation of methyl orange monoazo dye in aqueous wastewater

    Piyanud Jantawasu;Thammanoon Sreethawong;Sumaeth Chavadej

  • Synthesis of crystalline MgO nanoparticle with mesoporous-assembled structure via a surfactant-modified sol–gel process

    Piya Ouraipryvan;Thammanoon Sreethawong;Sumaeth Chavadej

Frequent Co-Authors

Thammanoon Sreethawong
Thammanoon Sreethawong Agency for Science, Technology and Research
John F. Scamehorn
John F. Scamehorn University of Oklahoma
David A. Sabatini
David A. Sabatini University of Oklahoma
Johannes Schwank
Johannes Schwank University of Michigan–Ann Arbor
Erdogan Gulari
Erdogan Gulari University of Michigan–Ann Arbor
Susumu Yoshikawa
Susumu Yoshikawa Kyoto University
Masahiko Abe
Masahiko Abe Tokyo University of Science
Tomohiro Imura
Tomohiro Imura National Institute of Advanced Industrial Science and Technology
Hideki Sakai
Hideki Sakai Tokyo University of Science
Dai Kitamoto
Dai Kitamoto National Institute of Advanced Industrial Science and Technology

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